FUEL INJECTION DEVICE
    1.
    发明申请
    FUEL INJECTION DEVICE 有权
    燃油喷射装置

    公开(公告)号:US20120042852A1

    公开(公告)日:2012-02-23

    申请号:US13318527

    申请日:2011-03-31

    IPC分类号: F02M69/04

    摘要: A fuel injection device (100) includes a control body (40) provided with an injection hole (44), a nozzle needle (60) that opens or closes the injection hole (44), a pressure control chamber (53) controlling a movement of the nozzle needle (60), an inflow channel (52) through which high-pressure fuel is introduced to the pressure control chamber (53), an outflow channel (54) through which the fuel from the pressure control chamber (53) is discharged, and a floating plate (70) that opens or closes the inflow channel (52). In the fuel injection device (100), the control body (40) includes a cylinder (56) defining the pressure control chamber (53) in a radial direction thereof, and an inner wall portion (56a) of the cylinder (56) includes a communication groove (57a) which causes an inflow chamber (53a) that is provided within the pressure control chamber (53) at a side of the inflow channel (52) relative to the floating plate (70), to communicate with a back pressure chamber (53b) that is provided within the pressure control chamber (53) at a side of the nozzle needle (60) relative to the floating plate (70).

    摘要翻译: 燃料喷射装置(100)包括设置有喷射孔(44)的控制体(40),打开或关闭喷射孔(44)的喷嘴针(60),控制运动的压力控制室 所述喷嘴针(60)的流入通道(52),将高压燃料引入所述压力控制室(53)的流入通道(52),来自所述压力控制室(53)的燃料通过所述流出通道 以及打开或关闭流入通道(52)的浮板(70)。 在燃料喷射装置(100)中,控制体(40)包括在径向上限定压力控制室(53)的气缸(56),气缸(56)的内壁部(56a) 连通槽(57a),其使得在所述压力控制室(53)内设置在所述流入通道(52)的相对于所述浮板(70)的一侧的流入室(53a)与背压 在所述压力控制室(53)内设置在所述喷嘴针(60)的相对于所述浮板(70)的一侧的室(53b)。

    Optical device and optical pickup device using the same
    3.
    发明授权
    Optical device and optical pickup device using the same 失效
    光学装置和使用其的光学拾取装置

    公开(公告)号:US5122903A

    公开(公告)日:1992-06-16

    申请号:US492489

    申请日:1990-03-12

    摘要: An optical element having a substrate and a composite grating pattern formed thereon. The pattern is constituted with two different kinds of grating patterns superimposed on the substrate. When one of the two kinds of grating patterns is formed in a Fresnel lens pattern, a light focusing or collimating function (i.e. a lens function) is implemented. When the other pattern is formed in an equally separated linear grating pattern, the optical element develops the lens function and a function to diffract lights through the linear grating. When one of the two kinds of grating patterns is formed in a Fresnel lens pattern and the other pattern is implemented in an unequally separated linear grating pattern, a lens function to focus lights onto a point and a cylindrical lens function to focus lights in a linear contour are obtained. Consequently, when parallel lights are incident to the optical element, there occurs astigmatism.

    摘要翻译: 具有形成在其上的基板和复合光栅图案的光学元件。 该图案由叠加在基板上的两种不同种类的光栅图案构成。 当在菲涅耳透镜图案中形成两种光栅图案中的一种时,实现光聚焦或准直功能(即透镜功能)。 当另一个图案以均匀分离的线性光栅图形形成时,光学元件产生透镜功能和通过线性光栅衍射光的功能。 当两种光栅图案中的一种形成为菲涅耳透镜图案并且另一图案以不均匀分离的线性光栅图案实现时,透镜功能将光聚焦到点和柱面透镜上,以将光线聚焦成线性 获得轮廓。 因此,当平行光入射到光学元件时,会出现散光。